In order to get a hold of an anonymous, mobile crime group, investigator Mitsuha Ashitaba plans to arrest a group of molesters, but is forced to step down due to a false arrest. Still, she sets out on an undercover operation with a sense of justice, but it turns out to be a trap... Mitsuha fails in the undercover operation and is injected with a muscle relaxant, rendering her immobile. Still, she maintains a strong, noble Kokoro that refuses to give in, but she is worn down unknowingly by the gang rape of the vile men that wears down her mind and body... Her body falls despite her desire to punish them. When a woman who was supposed to never succumb falls, an unimaginable eroticism is released. Rapture and explosion.